Fig. 2

Uncorrected Hubble residual vs. flux ratio ℛ(6630/4400) at maximum light, color-coded according to the absolute difference in B − V color derived from the spectrum and that derived from the photometry, noted |Δ(B − V)|. The dashed line is a linear fit to the SN Ia with |Δ(B − V)| < 0.1 mag. The highly-reddened SN 2006br is not shown here.
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